| Microorganism | Description | |
| Salmonella typhi | UCH NO12 Gram negative bacilli | |
| Bacillus | cereus | UCH PO13 Gram positive cocci |
| Proteus | mirabilis | UCH NO13 Gram negative bacilli |
| Pseudomonas aeruginosa | UCH NO14 Gram negative bacilli | |
| Bacillus subtilis | UCH FO11 | |